345261771 has 10 divisors (see below), whose sum is σ = 515761532. Its totient is φ = 230174460.

The previous prime is 345261743. The next prime is 345261773. The reversal of 345261771 is 177162543.

It is a happy number.

345261771 is a `hidden beast` number, since 34 + 5 + 2 + 617 + 7 + 1 = 666.

It is not a de Polignac number, because 345261771 - 2¹⁷ = 345130699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345261773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2131165 + ... + 2131326.

Almost surely, 2^345261771 is an apocalyptic number.

345261771 is a deficient number, since it is larger than the sum of its proper divisors (170499761).

345261771 is an equidigital number, since it uses as much as digits as its factorization.

345261771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262503 (or 4262494 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 345261771 is about 18581.2209232870. The cubic root of 345261771 is about 701.5352501335.

The spelling of 345261771 in words is "three hundred forty-five million, two hundred sixty-one thousand, seven hundred seventy-one".